Siemens TC35 Terminal Uživatelská příručka stáhnout pdf (Strana 15)

Interface description

Polarity reversal protection

Polarity reversal protection is implemented

by means of a power diode. The diode has a

reverse voltage of 400V.

Overvoltage protection

Overvoltages are suppressed by a Zener

diode after the polarity reversal protection

diode.

Fuses

A permanently installed, non-replaceable

fuse in the TC35 Terminal ensures electrical

safety in the event of faults. Connect a fast

1.25A fuse to the supply line of the positive

supply voltage for general protection of the

Terminal, see "Safety and installation

information" on page9.

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Siemens TC35 Terminal Uživatelská příručka Strana 15